[BaekJoon] 백준 2439번 별 찍기 - 2 - Java

🎈문제

https://www.acmicpc.net/problem/2439

 

💬설명

• BufferedReader 와 BufferedWriter를 사용하자
• 띄어쓰기는 --를 사용하고 별은 ++를 사용하자

 

⌨️ CODE

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Main {

	public static void main(String[] args) throws IOException{
		// TODO Auto-generated method stub
		
		BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
		
		int n = Integer.parseInt(br.readLine());
		
		for(int i = 0 ; i < n ; i ++) {
			for(int k= n ; k-1 > i ; k --) {
				bw.write(" ");
			}
			
			for(int j= 0 ; j-1 < i ; j ++) {
				bw.write("*");
			}
			bw.write("\n");
		}
		br.close();
		bw.flush();
		bw.close();
	}
}